// Endpoints come from env, never hardcoded.
//
// In local dev VITE_API_URL is set at build time via .dev.vars and Vite
// replaces the import.meta.env reference inline. In CF Workers deployments
// VITE_API_URL is a runtime text binding — invisible to Vite at build time —
// so import.meta.env.VITE_API_URL is undefined in the bundle. We fall back to
// the current origin + /api, which is correct because the dispatcher worker
// routes every /api/* path to the API units on the same hostname.
export function apiUrl(): string {
  if (import.meta.env.SSR) {
    // SSR context: PikkuProvider is a client-side provider and its serverUrl
    // is only consumed by hooks that run in the browser. Return the build-time
    // var when available (local dev) or a placeholder so SSR never throws.
    return import.meta.env.VITE_API_URL ?? '/__api'
  }
  // Client: use the build-time var (local dev) or derive from current origin.
  return import.meta.env.VITE_API_URL ?? window.location.origin + '/api'
}